Bb 7♭9♯11
Notes:Bb – D – F – Ab – B – E
Formula:R-M3-P5-m7-m9-A11
Intervals:P1-M3-P5-m7-m9-A11
Scale Degrees:1-3-5-b7-b9-#11
Introduction
The Bb 7♭9♯11 piano chord (Bb7♭9♯11) consists of the notes Bb, D, F, Ab, B, E. Formula: R-M3-P5-m7-m9-A11 | Scale degrees: 1-3-5-b7-b9-#11.
Enharmonic equivalent: B♭ is enharmonically equivalent to A♯. See A# 7♭9♯11.
Notes
Bb 7♭9♯11 Inversions
| Position | Notes |
|---|---|
| Root Position | Bb4 – D5 – F5 – Ab5 – B5 – E6 |
| 1st Inversion | D4 – F4 – Ab4 – B4 – E5 – Bb5 |
| 2nd Inversion | F4 – Ab4 – B4 – E5 – D6 – Bb5 |
Key Signature
The key of Bb 7♭9♯11 has 2 flats: B♭, E♭.
B♭E♭
Theory: Intervals
Formula: R-M3-P5-m7-m9-A11
Intervals: P1-M3-P5-m7-m9-A11
The Bb 7♭9♯11 is built by stacking intervals from the root note. The formula R-M3-P5-m7-m9-A11 describes the scale degrees used. The intervals P1-M3-P5-m7-m9-A11 show the distance between each note in the chord.
Bb 7♭9♯11 — Frequently Asked Questions
What notes are in the Bb 7♭9♯11 chord?
The Bb 7♭9♯11 chord (Bb7♭9♯11) contains 6 notes: Bb, D, F, Ab, B, E. Formula: R-M3-P5-m7-m9-A11.
How is Bb7♭9♯11 used in music?
Bb7♭9♯11 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for Bb7♭9♯11?
Bb7♭9♯11 uses scale degrees 1-3-5-b7-b9-#11, giving it its distinctive sound.
Practice Tips
- Start by placing your thumb on Bb and spacing remaining fingers across the chord.
- Practice Bb7♭9♯11 slowly with separate hands before combining.
- Listen carefully to the tension created by the altered tones in this chord.
- Try voicing Bb7♭9♯11 in different octaves to find the most comfortable position.
- Resolve Bb7♭9♯11 to a nearby chord to hear its function in context.